@voidspace@mastodon.org.uk what kind of hearing loss?
I "short circuit" my loss using conductive headphones.
I'm sorry, I don't have good resources on super flat response headphones, but if you are interested in modifying the sound in your 'pipeline', and have about a week that you're willing to spend to figure it out, you can use a tympan sound processor to make your headphones adjust to your hearing loss prescription.